Great White is a normal beefsteak type except that in in southern sunlight it is a very pale yellow. It is reasonably productive with a big sprawling vine and large flat catfaced fruits in the one pound class. Shape and growth habits are similar to the Henderson Ponderosas, Mr. Stripey, etc. https://garden.org/plants/view/113812/Tomato-Solanum-lycopersicum-Great-White/

They only taste good if you're color blind....

I grow Great White most years including this one. We really like it though I find the plant to be susceptible to early blight.

zone doesn't matter for summer vegetable crops.

I have grown them for several years, they are a favorite of my Mother and my husband. They are relatively productive, the plants are large and the fruits are big and sweet.

I do start my own seedlings from seed saved from year to year and I've found that they are a bit more fragile when starting then some others, and they particularly dislike being overwatered when they are small. Germination is good, though, 100% this year.

Annie